I disagree with the right hon. Gentleman. If a person produces a reasonable defence, as it would play in court, we would have to say, “That is not a valid defence,” and therefore we would have to prove why it is not. In addition, the public interest consideration will be involved when the CPS seeks to bring charges.
It is also important to inform the House that, obviously, reasonable excuses will include those in line with the European convention on human rights, such as access to family, the right to visit and all those things that give people their rights, but we are trying to introduce an important tool to make sure we deal with the scourge of the foreign fighter threat we now face here.